15_1/4x15_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Electrical Components They consistently provide intense light

They consistently provide intense light in the correct spectral range for vigorous flowering growth and can even be used

Available in 7K and 10K configuration

Size 21" Pack Type Bulk Color White Material Polypropylene Seam Style N/A Closure Type Latex Free Elastic

seeds and seedbeds

UV- and corrosion-

15_1/4x15_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Electrical Components They consistently provide intense lightNordic Pure Custom MERV 7 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition